public override object Read(plcdb_lib.Models.Model.TagsRow t)
{
if (!Client.Connected())
{
int connResult = Client.ConnectTo(ControllerInfo.Address, (int)ControllerInfo.s7_rack, (int)ControllerInfo.s7_slot);
if (connResult != 0)
{
Log.Error(GetErrorText(connResult));
Client.Disconnect();
Client = null;
Client = new S7Client();
throw new EntryPointNotFoundException("Unable to connect to PLC " + ControllerInfo.Name);
}
bgReadThread.DoWork -= ReadFromPLC;
bgReadThread.DoWork += ReadFromPLC;
RefreshDataTimer.Interval = 1000;
RefreshDataTimer.Elapsed -= RefreshDataTimer_Elapsed;
RefreshDataTimer.Elapsed += RefreshDataTimer_Elapsed;
RefreshDataTimer.Start();
}
SiemensTag Tag = ActiveTags.FirstOrDefault(p => p.TagRow.PK == t.PK);
if (Tag == null)
{
Tag = new SiemensTag()
{
TagRow = t
};
ActiveTags.Add(Tag);
}
return(Tag.TagRow.CurrentValue);
}
public override object Read(plcdb_lib.Models.Model.TagsRow t)
{
try
{
if (!ActiveTags.Select(p => p.TagRow).Contains(t))
{
AddTagToGroup(t);
}
return(ActiveTags.First(p => p.TagRow.PK == t.PK).Value);
}
catch (Exception ex)
{
throw new Exception("Error reading tag '" + t + "' from OPC server: " + ControllerInfo.Address + "\\" + ControllerInfo.opc_server, ex);
}
}
public override bool Write(plcdb_lib.Models.Model.TagsRow t, object val)
{
SiemensTag Tag = ActiveTags.FirstOrDefault(p => p.TagRow.PK == t.PK);
if (Tag == null)
{
Tag = new SiemensTag()
{
TagRow = t
};
ActiveTags.Add(Tag);
}
WriteToPLC(Tag, val);
return(true);
}
public override bool Write(plcdb_lib.Models.Model.TagsRow t, object val)
{
try
{
if (!ActiveTags.Select(p => p.TagRow).Contains(t))
{
AddTagToGroup(t);
}
OpcTag ToWrite = ActiveTags.First(p => p.TagRow.PK == t.PK);
TagGroup.SyncWriteItems(new int[] { ToWrite.ServerId }, new object[] { val });
return(true);
}
catch (Exception ex)
{
throw new Exception("Error writing tag '" + t + "' from OPC server: " + ControllerInfo.Address + "\\" + ControllerInfo.opc_server, ex);
}
}
public override bool Write(plcdb_lib.Models.Model.TagsRow t, object val)
{
throw new NotImplementedException();
}
public override object Read(plcdb_lib.Models.Model.TagsRow t)
{
throw new NotImplementedException();
}
